Home / 68,127.46-102,206.57-20,746.79

Finding the Fourth Proportional to 68,127.46, 102,206.57 and 20,746.79

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Solution

The fourth proportional to 68,127.46, 102,206.57 and 20,746.79 is: 31,124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,127.46 : 102,206.57 = 20,746.79 : x
  2. Step 2: Convert to fraction form
    68,127.46/102,206.57 = 20,746.79/x
  3. Step 3: Cross multiply
    68,127.46x = 102,206.57 × 20,746.79
  4. Step 4: Simplify right side
    68,127.46x = 2,120,458,244.41
  5. Step 5: Solve for x
    x = 2,120,458,244.41/68,127.46
  6. Step 6: Final answer
    x = 31,124.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.